. >>> meanwhile, crunch time for the presidential candidates as they head into this week's debate. running a tight race, our new poll shows president obama running a two-point lead over mitt romney. ahead of wednesday night's face-off. the president now in nevada preparing for the debate. mitt romney rehearsing in manages mis. both campaigns are downplaying expectations. >>> and a deadly day in afghanistan. three american troops killed this morning in a suicide bombing just one day after a very grim milestone there. now more than 2,000 u.s. troops have been killed in the war. >>> and a daring rescue caught on camera in texas. you can see the suv there sburs flames after the driver lost control and crashed. but then the driver of a passing car stops, risking his own life, pulling that driver out on to the parking lot. and great news today, the man okay this morning. >>> and u.s. agriculture experts say the concerns about a widespread bacon shortage in coming months are pure -- hogwash. the american farm bureau federation now says that pork supplies will just decrease only slightly o